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Axillary lymph node metastasis from colorectal carcinoma is extremely rare, and this scarcity hinders understanding of its pathogenesis and, thus, the application of appropriate management. Here, we present a case with axillary lymph node metastasis of cecal carcinoma associated with macroscopic invasion of the skin of the abdominal wall with histological evidence of such invasion, findings which support our hypothesis that the axillary lymph node metastasis developed via the lymph channels in the skin of the abdominal wall. A 76-year-old woman with cecal carcinoma (T4N1M0), complicated with an abdominal wall abscess, underwent right hemicolectomy with partial resection of the abdominal wall. Histology demonstrated multiple sites of lymphatic invasion in the skin. Two months later, an enlarged right axillary lymph node was noticed on CT, and an excisional biopsy was obtained, which later confirmed metastatic adenocarcinoma. This is the first case report of axillary lymph node metastasis of carcinoma of the cecum with histologically proven invasion via the lymphatic system in the skin. If axillary lymph node metastasis results from aberrant lymphatics due to invasion from an adjacent organ, and not the result of systemic malignant disease, it may be considered as a surgically curable pathology. Therefore, the authors advocate that patients with axillary lymph node metastasis should be evaluated with regard to the possibility of surgical curability.

surgical case reports

Right axillary lymph node metastasis of carcinoma of the cecum with histologically proven cutaneous lymphatic invasion by carcinoma cells: a case report